so, I've had something on my mind recently... put a lot of thought into it but i havent reached a conclusion. its about evolution...
i have heard that if you are having trouble falling asleep, you can fap and release an orgasm, this way it will send out some hormone that makes you tired. but, if an orgasm makes you tired, why do guys wake up with a boner in the morning? it doesnt make any sense? does this mean god exists, and the flat is earth?

well if you want a serious answer I can probably give you one.
When it's time to 'wake up' your heart starts pumping blood much harder/faster throughout the body, and since your dick is a part of your body, it gets filled with blood.
idk tho, havent done any research, and this doesnt seem likely since it would happen every morning if this was the case, but I dont always have a morning boner, or maybe it just slips my mind.
Or you just had a sexy dream ;) ; )

For some few I guess. However, If your penis tends to wake up at the crack of dawn before you do, consider it a very good and normal sign. That "good morning" salute is a sign of vigorous blood levels of testosterone which is a reflection of your overall good health.